Patents by Inventor Shunxiang Li

Shunxiang Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 7H-azulene [1,2,3-i,j] isoquinolin-7-one compound, single crystal and use thereof
    Patent number: 11312687
    Abstract: A 7H-azulene [1,2,3-i,j] isoquinolin-7-one compound, a single crystal and a use thereof are provided. The compound has a structure as shown in a formula (I). The present invention obtains a crude extract of Acorus calamus L., then extracts with different polar solvents in sequence and separates column chromatography to obtain a novel alkaloid compound, which is expected to be developed into a novel class of drug exerting neuroprotective effects, so as to prevent and treat senile dementia, stroke and epilepsy diseases.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: April 26, 2022
    Assignee: HUNAN UNIVERSITY OF CHINESE MEDICINE
    Inventors: Shunxiang Li, Juan Li
  • 7H- azulene [1,2,3-i,j] isoquinolin-7-one compound, single crystal and use thereof
    Publication number: 20190194138
    Abstract: A 7H-azulene [1,2,3-i,j] isoquinolin-7-one compound, a single crystal and a use thereof are provided. The compound has a structure as shown in a formula (I). The present invention obtains a crude extract of Acorus calamus L., then extracts with different polar solvents in sequence and separates column chromatography to obtain a novel alkaloid compound, which is expected to be developed into a novel class of drug exerting neuroprotective effects, so as to prevent and treat senile dementia, stroke and epilepsy diseases.
    Type: Application
    Filed: March 22, 2018
    Publication date: June 27, 2019
    Inventors: Shunxiang Li, Juan Li